What is the use case for this? As far as I know, DD does not support outgoing NDMP. However, there may be a different way to do what you're trying to do (e.g. replication).

interesting, why not use snapshots or fastcopy ?

More or less where I was going with my follow-up question.

This is kind of a unique case, which we only do in this one instance in our environment, so Ive never tried anything like what your asking. So, I can use networker to take a snapshot backup of that CIF data?

What is your end goal? What are you trying to accomplish?

You can take DD snapshots through the DD Enterprise Manager or the DD OS shell but you should make sure it will do what you need first.

NDMP cannot be done, but I believe your goal is to "Back up" the data domain.  seems a little weird, since your DD should only have backups on it.

What I would do in your case is setup an NFS mount to a Linux Networker storage node, it will still have to transfer the data across the network, but only once.  Just backup the NFS mount.  You will loose your ACLs and it will re-hydrate the files when you back them up.

I'm trying to do the same thing. I've a CIFS share on Data Domain that I want Networker to backup to a tape target.

Then define CIFS share as save set and back it up to tape.

It doesn't work. Just gives "Remote system error - No connection could be made because the target machine actively refused it." message. Which I presume is a username or password issue but doesn't seem to be.

For CIFS share?  Did you try to map this CIFS share?

You can't backup the share directly from the DD, you've to use an other host which has the CIFS share mapped.

Create a client ressource with the CIFS share as a save set und use save -xL as the backup command.

Maybe you'll run into some permission issues, check this article: https://support.emc.com/kb/314778